Pump-operating mechanism



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GEORGE W. HILL, O15' COMMERCE, OKLAHOMA.

PUMP-OPERATING MECHANISM.

Application filed October 4, 1921.

./.'o (d fio/mm. 'it may concern.'

.Be it known that l, Geenen lV. HILL, a citizen ol the AUnited States, residing at Commerce, in the eount7 ot Ottawa and State ot Oklahoma, have invented certain new and usetul Improvements in Pum Operating Mechanism, ol.r which the following` is a specification.

This invention relates to pump jacks, and it comprises a. trame adapted to be mounted on the casing or a pump and surround the plunger rod. a. spring secured to said frame and said plunger rod, au operating lever pivotally mounted on said iframe and connected to said `plunger rod, means i'or connecting said lever to a power operated drive member, and means for connectinga handle to said lever.

An object of the invention is the provision ot means ot cushioning the plunger rod on its downward stroke.

A further object is the provision or' a pump construction which will permit smoother operation and reduce vibration.

A further object is the provision of a supporting lrame ot simple construction.

ln the accompanying drawings l have shown one embodiment of the invention. In this showing:

Figure 1 is a perspective view of a pump casing showing the invention applied,

Figure 2 is a horizontal sectional view on line 2-2 of Figure 1,

Figure 3 is a similar view on line 3*3 ol" Figure 1, and,

Figure 4 is a similar view on line 4-l of Figure 1.

Referring to the drawings, the reference numeral 1 designates a pump casing` having a plunger (notshown) operating therein in the usual manner. rlhe plunger is provided with a plunger rod extending through the top oll the casing.

supporting traine is arranged on top ol the casing surroiuuliiig thc plunger rod. its shown the supporting `traine romprises a pluralil)v el' upright members Il. the lower ends of which are ollsct as at l and adapted te he secured to the top oll the puinp casing. lhe upper ends ol? the upright members a re connected by a ranie 5. This -tramo is :ulapted to support a pin or transverse rod (i and the upper end of a spring 7 is secured thereto. The lower end of the spring is received in a ring 8 carried by a clip or bracket Sl'surrounding the plunger rod. A. pair et Serial No. 505,310.

arms 1() are arranged on one pair or' the upright members and a link 11 is pivotally mounted in these arms. As shown, the lower end 12 ot' the link is substantially Y-shaped and the two arms provided are adapted to receive pivot pins passing through the arms n operating lever 13 extends transversely of the frame and is 'pivoted to the link 11, as at lil. This lever is provided with an intermediate portion l5 termed of two arms curved with respect to each other and adapted to surround the plunger rod and spring (see Figure 2). A. plate 1G is secured to these arms and this plate is provided with a ciilrvedvportion 17 adapted to receive the plunger rod. A similarplate 18 is secured to the plate 16 and is provided with a curved portion 19 adapted to be arranged on the opposite side ot the plunger rod to connect the rod to the operating lever.

A link 20 is .pivotallv connected to the end of the operating lever b f a pin 21. As shown, the pin is provided with a wing nut 219 which may be removed when the link is to be disconnected. This link is also connected to a pivoted lever 23 pivotally mounted on the upper ends or' a pair ot' the upright members 3. A wind mill rod 24 is adapted to be connected to the other end of the lever 23.

The pump is provided with a handle 25 for manna-l operation, the handle being pivotally mounted on a pin 26 passing through a pair ot the upright members. A link 27 is provided with a 'forked end 2S adapted to surround the handle and connected thereto by means ot a pin 29. The other end ot' the link is pivotally connected to the operating lever 13 by means of a pin 30. This pin is threaded and is provided with a wing nut 31 permitting the handle to be disconnected ,trom the operating lever.

The plunger rod is provided with a guide 32 having` a substantiall)7 semi-circular recessed tace for the reception el the plunger rod. rVhis guide .is provided with a pair ol arms 323 having` offset ends feladapted to he secured to a pair oli the upright members.

ln operation, one of the pins 21 or 30 is adapted to be disconnected. When the pin 30 is disconnected the pump is adapted to be driven by a wind mill in the usual manner, the reciprocation or rod 34 being transmitted to the operating lever 18 through the pivoted lever 23 and link 20. As the operating lever reciprocates the plunger rod is also recipro.V

cated. The downward stroke o'f the plunger rod is an idle stroke as the work to be performed takes place on the upward stroke. Ordinarily the load on the upward stroke has a tendency to retard the movement et the plunger rod andthe plunger rod has a tendency to race or speed up on the downward stroke when no work is being performed. ln the present construction the spring 7 is placed under tension on the downward stroke and tends to restrain the movement olf' the plunger. On the upward stroke the tension olf' the spring assists in liltiifigy,` thc water or other fluid. lt will. thus be seen that a smoother operation is obtained and vibration is reduced. A

When the pump is to be operated by hand, the pin .21 is removed and the link 27 con nected to the operating lever by pin 30. lvllhe pump is then operated in its ordinary manner.

lt is to be understood that the 'form oli my invention herewith shown and described is to be taken as a preferred example of the same, and that various changes in the shape, size, and arrangement of parts may be resorted to without departing .trom the spirit of the invention or the scope oi' the subjoined claims.

Having thus described my invention, l claim:

l. Pump operating mechanism comprising a supporting Jframe, said frame consisting of a plurality of upright members adapted to be arranged on the top of a pump casing and surrounding the plunger rod, supporting arms carried by said upright members, a link pivotally mounted in said arms, an operating rod pivotally connected to said link and extending transversely of said trame, means for connecting a plunger rod to said operating lever, a lever pivotally mounted on said frame above said operating rod, one.end of said lever being` adapted to be connected to a wind mill rod, a link connecting said lever to said operating rod, a handle pivotally mounted on said supporting frame, and

i ,ascesa means for detachably connecting' said handle to said operating rod.

2. Pump operating mechanism comprising a supporting trame, said 'frame consisting,` of a plurality of upright members adapted to be arranged on the top ot' the pump casing and surroundingthe plunger rod, supporting arms carried by said uprimit members, a link pivotally mounted in said arms, an operating lever pivotally connected to said link and extending transversely ot the Yllame, means for connecting` a plunger rod to sa id operating` lever, a lever pivotally mounted on said Ytrame above said operating rod and suby stantially parallel thereto, one end et said lever being` adapted to be connected to a wind-mill rod, and a link connected between the free end of said lever and said operating;

- lever.

3. Pump operating` mechanism comprising a` supporting frame, said trame consisting; of a plurality of upright members adapted to be arranged on the top of a pump casing and surrounding the plunger rod, supporting;` arms carried by said upright members, a link pivotally mounted in said arms, an operating,` lever pivotally connected at one end to said link and extending transversely of said trame, means for connecting a plunger rod to said operating lever, a lever pivotally mounted on said Jframe above said operati ng; lever and substantially parallel thereto, one end ot said lever being` adapted to be connected to a wind-mill rod, a link connectingr the tree ends orp said lever and said operating` lever, a handle pivotally mounted on said supporting trame substantially parallel to said operating` lever and a link connected between said handle and said operating' lever.

In testimony whereofv l aflix my signature in presence of two witnesses.

GEORGE TN. HILL.

litnesses S. H. BAYLOUR, ETHEL lVRrGH'r. 

